21557085 (number)

21557085 is an odd 8-digits composite number following 21557084 and preceding 21557086. In scientific notation, it is written as 2.1557085 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 10451840 positive integers (up to 21557085) that are relatively prime to 21557085.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred fifty-seven thousand eighty-five

Notation

Scientific notation 2.1557085 × 10^7
Engineering notation 2.1557085 × 10^6

Prime Factorization of 21557085

Prime Factorization 3 × 55 × 130649

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21557085
Product of the distinct prime numbers

The prime factorization of 21557085 is 3 × 55 × 130649. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21557085)

Multiplication

n×y
n×2 43114170
n×3 64671255
n×4 86228340
n×5 107785425

Division

n÷y
n÷2 10778542.5
n÷3 7185695
n÷3 5389271.25
n÷5 4311417

Exponentiation

ny
n2 464707913697225
n3 1.0017747995744E+22
n4 2.1595344505283E+29
n5 4.6553267710466E+36

Nth Root

y√n
2√n 4642.9608010406
3√n 278.3107690442
4√n 68.139275025793
5√n 29.289907950956

Divisors of 21557085

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21557084
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21557085 can be divided by 8 positive divisors. The sum of these divisors (counting 21557085) is 1, the average is 0.125.

Base conversion 21557085

Base System Value
2 Binary 1010010001110111101011101
3 Ternary 1111120012202120
4 Quaternary 1102032331131
5 Quinary 21004311320
6 Senary 2050013153
8 Octal 122167535
10 Decimal 21557085
12 Duodecimal 72771b9
16 Hexadecimal 148ef5d
20 Vigesimal 6eece5
36 Base36 cu1jx

Cryptographic Hash Functions

md5 db5a7ba56d694adaa6fb3d3d6b28a3e7
sha1 9f5da37e21eac6eee5de99e426273e9a93a6dfa5
sha256 74dec3f14a53957332bd5a6235c1e1b2da5675f4ff0e36184b474d2d48fdf45e
sha512 faab8fe80ad1e6662c517576e24f339b982798ae72b59d2114e35d8fc7a89224ee8ac9855d5d9d510e13a08a92da2210ed2d71a48e62a6dbe9945cbf30fe7f6f
ripemd-160 9fadc350e6c094a703d743fdeb8b9f616e5a2e56

21557085 as geometric shapes

Circle

Radius = n
Diameter 43114170
Circumference 135447159.73762
Area 1.4599229677362E+15

Sphere

Radius = n
Volume 4.196224467859E+22
Surface area 5.839691870945E+15
Circumference 135447159.73762

Square

Length = n
Perimeter 86228340
Area 464707913697225
Diagonal 30486321.97223

Cube

Length = n
Surface area 2788247482183350
Volume 1.0017747995744E+22
Space diagonal 37337966.483081

Equilateral Triangle

Length = n
Perimeter 64671255
Area 2.0122442930073E+14
Altitude 18668983.24154

Triangular Pyramid

Length = n
Surface area 2.0122442930073E+14
Volume 1.1806029233347E+21
Height 10162107.324077